Wear-resistant coating processing is a special coating, its main function is to improve the wear resistance of the object to be protected. With the continuous development of science and technology, coating technology is constantly updated, and the varieties of wear-resistant coatings on the market are relatively rich, but their quality and even the advantages and disadvantages of durable performance are different. Therefore, how to choose the most durable wear-resistant coating processing has become the focus of many enterprises.
First, PVD coating
Physical vapor deposition coating (PVD), also known as vacuum evaporation coating, commonly used tungsten nitride, titanium nitride, titanium carbide and so on. PVD coating is widely used in surface treatment because of its good wear performance, strong corrosion resistance and diverse coating colors. However, its manufacturing cost is relatively high, the production cycle is long, and it is not easy to large-scale application.
Second, sodium silicate glass coating
Sodium silicate glass coating is a kind of inorganic glass, which is often sprayed or dipped in the coating process, which can improve the hardness, wear resistance and corrosion resistance of the coated object, and is often used in high-tech industries that need long-term use. The advantages of sodium silicate glass coating are strong wear resistance, good corrosion resistance, high surface hardness, high temperature resistance, etc., but the cost is relatively expensive.
Third, thermal spraying coating
Thermal spray coatings, also known as casting coatings, are often used in surface treatment. The principle of thermal spraying technology is to use a high-temperature spray gun to spray various materials to the surface of the protected object to form a layer of solid physical properties of the protective layer. The advantages of thermal spraying coatings are good wear resistance, strong corrosion resistance, convenient local maintenance, relatively low cost, and can produce a variety of beautiful colors.
Fourth, a coating with a metal component
Coatings with metal components are often made by chemical reactions or electrochemical methods, such as electroplating, chromium plating, zinc plating, etc. This coating with a metal component has a variety of advantages, such as high hardness, good wear resistance, electrical stability, corrosion resistance, and can produce a variety of gorgeous appearance. However, the cost of such coatings is high, the production cycle is long, and the susceptibility to environmental changes will greatly affect its durability.
Five, composite coating
Composite coating is to compound different kinds of coatings after production, so as to improve its overall performance, you can choose different coating forms according to different needs. Composite coating can combine a variety of coatings, with wear resistance, corrosion resistance, oxidation resistance and many other characteristics, compared with other coating forms are more durable, and suitable for different industries, but the price is more expensive than a single coating.
Conclusion:
In the classification of the coating, if you want to find the most durable coating, no one is particularly prominent, different coatings have their own good wear resistance, and this also has a great relationship with the shape and size of the coated object, the environment and so on. At the same time, different enterprises also need to choose coating types according to their own needs, such as PVD coating or electroplating coating to reduce costs. The author suggests that enterprises need to choose the appropriate coating type according to their actual situation and expected effect, and do a good job in all aspects of coating design, selection, construction, etc., in order to obtain a good use experience.
